CN111850192A

CN111850192A - Blast furnace granulated slag processing system

Info

Publication number: CN111850192A
Application number: CN202010756630.7A
Authority: CN
Inventors: 陈生利; 刘立广; 蓝兴升; 陈�胜; 李静
Original assignee: SGIS Songshan Co Ltd
Current assignee: SGIS Songshan Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-10-30
Anticipated expiration: 2040-07-31
Also published as: CN111850192B

Abstract

The application provides a blast furnace grain slag processing system relates to the slag processing field. The blast furnace slag treatment system comprises a packing auger pool, a slag-water mixing tank, an abradable water retaining wall and a residual thickness detection scale. The feed end of auger pond outwards extends and forms the buffer pool, and the sediment water mixing tank is located the top of buffer pool and carries the sediment water to the buffer pool in, and the manger plate that can wear and tear can be dismantled and set up in the junction in buffer pool and auger pond with partial fender buffer pool and auger pond of separating, and the front of manger plate is towards the buffer pool, and the bottom of manger plate has the first runner of intercommunication buffer pool and auger pond. Incomplete thick detection scale sets up in the front of breakwater, and incomplete thick detection scale is used for detecting and obtains the real-time thickness of breakwater, and it not only can effectively block the high-speed sediment water of high pressure and directly strikes the auger, prevents wearing and tearing the auger, improves auger life, improves the area sediment efficiency of auger simultaneously, has avoided the heap sediment of auger pond to cause the emergence that the auger stuck to stop the accident.

Description

Blast furnace granulated slag processing system

Technical Field

The application relates to the field of slag treatment, in particular to a blast furnace granulated slag treatment system.

Background

At present, blast furnace slag treatment is basically carried out by adopting a grain slag treatment mode, molten slag is placed in water for rapid cooling through high-pressure water sprayed from a punching box, crystallization is limited, the molten slag is granulated into fine sand under the action of thermal stress, and the granulated grain slag enters a slag water pool together with high-pressure water flow through a slag-water mixing tank. In the slag-water mixing tank, the slag is taken away by the auger and enters the grain slag conveying belt, water and slag are separated on the auger, and then the slag is conveyed to a slag yard or a slag storage bin through the auger and the belt.

At present, a buffer tank is generally arranged between a slag-water mixing tank and an auger, and the buffer tank is mainly used for relieving the motion of high-speed slag flushing water, separating a slag-water mixture and slowly flowing into an auger area, thereby improving the slag carrying efficiency of the auger. The influence on the operation of the auger caused by the fact that large slag which is not completely granulated directly enters the auger area can be reduced.

However, the pressure of the slag flushing water blown from the flushing box reaches 0.2MPa, so that the flow velocity of the slag-water mixture is very high and reaches more than 8 m/s. When tapping and discharging slag, the slag-water mixture is impacted and abraded for a long time, so that the buffer tank loses the effect quickly. At the moment, the high-pressure and high-speed slag-water mixture directly contacts the packing auger, the packing auger slag carrying efficiency is reduced, meanwhile, the packing auger is abraded and aggravated, the service life of the packing auger is short, faults such as sudden shutdown and the like of the packing auger are easily caused, the blast furnace needs to discharge dry slag for tapping, the dry slag is discharged, the cost of molten iron is increased, the environment is polluted, and potential safety hazards exist.

Disclosure of Invention

The embodiment of the application aims to provide a blast furnace granulated slag processing system which can effectively solve at least one technical problem.

The embodiment of the application provides a blast furnace slag processing system, including auger pond, sediment water mixing tank, the manger plate wall that can abrade and incomplete thick detection scale.

Wherein, the feed end in auger pond outwards extends and forms the buffer pool, and the sediment water mixing tank is located the top of buffer pool and carries the sediment water to the buffer pool in.

The water retaining wall capable of being abraded is detachably arranged at the joint of the buffer pool and the auger pool to partially separate the buffer pool and the auger pool, the front surface of the water retaining wall faces the buffer pool, and a first flow channel communicated with the buffer pool and the auger pool is arranged at the bottom of the water retaining wall.

The residual thickness detection scale is arranged on the front face of the water retaining wall and used for detecting and obtaining the real-time thickness of the water retaining wall.

In the implementation process, the arrangement mode that the water retaining wall is arranged at the joint of the buffer pool and the auger pool is adopted, after the buffer pool is out of work, high-pressure and high-speed slag water can be effectively prevented from directly impacting the auger, the auger is prevented from being worn, and the service life of the auger is prolonged. Meanwhile, the arrangement mode of the water retaining wall capable of being worn is adopted, the part which is impacted and worn is mainly powdery or granular and is directly discharged along with the water slag, and compared with the arrangement mode of the water retaining wall made of wear-resistant materials, the phenomena of blocking, stirring, blocking a feed opening, damaging a belt and the like caused after the water retaining wall made of the wear-resistant materials falls off can be effectively avoided; and further adopt the detachable to set up the cooperation of mode and incomplete thick detection scale, not only can obtain the wearing and tearing condition of breakwater, change new breakwater, thoroughly solve the phenomenon such as the card that causes after the breakwater that wear-resistant material made drops is died and is stirred up, stifled feed opening, damage belt, simultaneously according to the degree of wear in every region different, can provide reference for the mounted position of breakwater to it is swift to change, repeatedly usable.

In a possible implementation scheme, the number of the residual thickness detection scales is multiple, and the multiple residual thickness detection scales are arranged at the middle position of the water retaining wall at intervals.

In the implementation process, the plurality of residual thickness detection scales are arranged to be more beneficial to obtaining the abrasion conditions of different areas, so that the residual thickness detection scales can be replaced in time.

Optionally, the number of the residual thickness detection scales is five, wherein four detection scales are arranged in a square and located at four corners of the square, and the remaining one detection scale is located at the center of the square.

In the implementation process, the distribution mode is favorable for judging the distribution condition of the slag flushing water in each direction, and technical support is provided for adjusting the mounting position of the retaining wall.

In a possible embodiment, the front surface of the water retaining wall is provided with a buffer beam for buffering the impact force of slag water, and the buffer beam protrudes out of the front surface of the water retaining wall.

In the above-mentioned realization process, because the bumper beam protrusion is in the front of breakwater, consequently the bumper beam bulge has increased the area that bears the rivers impact, has reduced the impact that the unit area receives, and when rivers impacted the bumper beam, rivers will be shunted to two side flows, separate rivers, and increased the route of flowing through of rivers, also slowed down the impact of rivers to the breakwater, effective buffering sediment water impact force also has the effect of strengthening the breakwater intensity simultaneously.

In one possible embodiment, the bumper beam is vertically arranged on the front face of the water retaining wall.

In the implementation process, the vertical buffering beam is arranged, so that the buffered water can flow downwards to the ground along the buffering beam, and the water guide and the water accumulation prevention are realized.

In a possible embodiment, the bumper beam is a circular arc bulge protruding out of the front surface of the water retaining wall.

In the implementation process, the arc bulge is beneficial to changing the direction of slag flushing water and improving the buffering effect.

In one possible embodiment, the number of the buffer beams is one or more, and a plurality of the buffer beams are arranged at intervals.

Optionally, the number of bumper beams is 3-5.

In the above-mentioned realization in-process, the impact of rivers can effectively be broken up to a plurality of bumper beams, and former sediment rivers are separated for stranded rivers by the arch of a plurality of distributions, and the impact erosion ability of every share of rivers weakens, and in addition, between two bumper beams, kinetic energy offset after meeting from two bumper beam protrusion ends rivers that begin to flow down respectively to the kinetic energy of rivers has been reduced, the impact of reduction rivers to the waterwall.

Simultaneously, the quantity of bumper beam is difficult too much, and it is little to surpass 5 bumper beams (circular arc is protruding) transition diameters, and the angle between two bumper beams diminishes, and buffering effect is poor, increases the preparation degree of difficulty simultaneously.

In one possible embodiment, the junction of the bumper beam and the front face of the waterwall transitions smoothly.

In the implementation process, the connecting part of the buffer beam and the front surface of the water retaining wall is in smooth transition, so that slag water cannot rebound after the connecting part is contacted with the slag water, and the buffer effect is achieved.

In one possible embodiment, the water retaining wall comprises a base body and a plurality of layers of steel wire meshes, wherein the base body is made of pouring refractory materials, and the plurality of layers of steel wire meshes are arranged in the base body at intervals along the thickness direction of the water retaining wall.

In the implementation process, the water retaining wall is more stable and firmer in structure by introducing the steel wire mesh.

Optionally, the substrate is cast from corundum.

In the implementation process, the corundum material is a common refractory material, has certain wear resistance after being poured, is mainly powder after being washed by slag water, can be effectively discharged along with the slag water, and does not influence the auger.

In a possible implementation scheme, the blast furnace granulated slag processing system further comprises a fixing frame, the fixing frame is fixedly arranged at the joint of the buffer pool and the auger pool, the water retaining wall is positioned on one side of the fixing frame close to the buffer pool and is detachably connected with the fixing frame, the fixing frame is provided with a second flow channel, and the buffer pool, the first flow channel, the second flow channel and the auger pool are sequentially communicated.

Optionally, the mount encloses to establish and forms and holds the chamber, holds the chamber and has the opening towards one side of buffer pool, and the breakwater can be dismantled to inlay and locate and hold the intracavity, and the front of breakwater exposes in the buffer pool through the opening.

In the implementation process, the fixing frame is arranged, so that the stability of the water retaining wall after installation is guaranteed.

In a possible embodiment, the top of the retaining wall is provided with a lifting lug.

In the implementation process, the lifting lugs are arranged to facilitate replacement of the water retaining wall.

Optionally, the blast furnace slag treatment system further comprises an auger, and the input end of the auger is positioned in the auger pool.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a blast furnace granulated slag treatment system;

FIG. 2 is a schematic structural view of a retaining wall;

FIG. 3 is a schematic view of the retaining wall and the fixing frame.

Icon: 10-a blast furnace granulated slag treatment system; 100-auger pool; 101-a packing auger; 110-a buffer pool; 120-slag-water mixing tank; 130-water retaining wall; 131-a first flow channel; 133-a lifting lug; 140-a bumper beam; 150-residual thickness detection scale; 160-a fixed frame; 161-first opening.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the prior art, the slag-water mixture in the buffer tank has high flow speed and large impact force, so that the auger has low slag carrying efficiency, the slag in the buffer tank and the slag in the auger tank are seriously accumulated, the buffer tank and the slag in the auger tank need to be regularly cleaned, and the cleaning time is more than 5 hours once. The cleaning needs the operation of dry slag discharging, the dry slag discharging not only increases the cost of the molten iron, but also pollutes the environment, and potential safety hazards exist.

In order to solve the problems existing in the background technology of the application, the conventional blocking structure arrangement mode in the field is adopted in advance, a wall body made of wear-resistant materials is fixedly arranged at the joint of a buffer pool and an auger pool to partially block the buffer pool and the auger pool, the conventional wear-resistant materials are steel plates, reinforced concrete and the like, the service life of the wall body is prolonged by utilizing the wear resistance of the wear-resistant materials, and the high-pressure and high-speed slag-water mixture is prevented from directly contacting the auger.

However, in the practical application process, the applicant finds that if the arrangement mode is adopted, the problems existing in the background technology cannot be completely solved, the wear-resistant wall body is easy to directly fall off after being actually washed by the high-pressure and high-speed slag-water mixture for a period of time, and at the moment, the packing auger can be directly clamped by a steel plate, a steel bar or other massive concrete and the like, so that the packing auger is damaged, and the packing auger is very easy to jump and stop. When the auger suddenly stops running in the deslagging process, an emergency hole plugging must be carried out in front of the furnace; and large sundries enter the grain slag conveying belt along with the operation of the packing auger, are easy to abrade or scratch the grain slag conveying belt behind the packing auger, cause the belt to crack, cause the belt to jump and stop in serious cases, and have potential safety hazards.

In view of this, the present application is hereby presented.

Referring to fig. 1, a blast furnace slag treatment system 10 mainly includes an auger tank 100, a slag-water mixing tank 120, a water retaining wall 130 capable of being worn and damaged, and a residual thickness detection scale 150, wherein the arrow direction shown in fig. 1 is the slag-water conveying direction.

The auger 101 is arranged in the auger pool 100, wherein the auger pool 100 has a first direction substantially parallel to an axis of the auger 101 and a second direction substantially perpendicular to the first direction (the first direction is substantially parallel, substantially perpendicular to the second direction is not absolutely parallel, absolutely perpendicular, but may be slightly inclined), the feeding end is located on a side wall of the auger pool 100 in the first direction, the feeding end of the auger pool 100 extends outward to form the buffer pool 110, optionally, the feeding end of the auger pool 100 extends outward in the second direction, that is, the auger pool 100 and the buffer pool 110 are L-shaped as a whole.

The slag-water mixing tank 120 is located above the buffer tank 110 and delivers high-pressure and high-speed slag water into the buffer tank 110.

The wearable water retaining wall 130 is detachably arranged at the joint of the buffer pool 110 and the auger pool 100 to partially separate the buffer pool 110 and the auger pool 100, the front surface of the water retaining wall 130 faces the buffer pool 110, and the bottom of the water retaining wall 130 is provided with a first flow channel 131 for communicating the buffer pool 110 and the auger pool 100. The residual thickness detection scale 150 is disposed on the front surface of the water blocking wall 130, and the residual thickness detection scale 150 is used for detecting and obtaining the real-time thickness of the water blocking wall 130, that is, the residual thickness detection scale 150 is disposed on the water blocking wall 130 along the thickness direction of the water blocking wall 130.

Under the above setting condition, even if the subsequent buffer tank 110 is aged, the high-pressure and high-speed slag water output from the slag water mixing tank 120 is conveyed to the auger tank 100 through the first runner 131 after being blocked by the water retaining wall 130, so that the high-pressure and high-speed slag water is prevented from directly impacting and wearing the auger 101, meanwhile, the residual thickness detection scale 150 is used for obtaining the real-time thickness of the water retaining wall 130, the water retaining wall 130 is replaced in time, and the problems of blocking, stirring, blocking a discharging port, damaging a belt and the like caused after the wear-resistant water retaining wall 130 which is conventionally arranged falls off are thoroughly solved.

Specifically, the abradable retaining wall 130 may be directly cast from a refractory material, which includes but is not limited to corundum, and may also be silica aggregate, etc. in this embodiment, the refractory material is corundum, which has better wear resistance and erosion resistance on the premise of abradability, prolongs the replacement time, and becomes powder after being abraded, and flows out along with the slag and water.

To further enhance the strength of the dam 130, the dam 130 includes a base (not shown) and a plurality of steel wire meshes (not shown) disposed in the base.

The base body is cast by a refractory material, and the refractory material in the embodiment is corundum.

The multiple layers of steel wire meshes are arranged at intervals along the thickness direction of the water retaining wall 130, wherein the thickness direction refers to the extending direction of the installed water retaining wall 130 from the front surface to the side facing the auger pond 100, and the thickness direction is basically parallel to the axial direction of the first flow channel 131.

The specific number of the multiple layers of steel wire meshes is, for example, two, three, five, and the like, and specifically, for example, three layers of steel wire meshes are distributed in the base body at equal intervals, specifically, for example, when the retaining wall 130 is a rectangle with a length of 2000mm, a height of 1000mm, and a thickness of 300mm, a distance between each two layers of steel wire meshes is 75 mm. Each layer of steel wire mesh is formed by weaving steel wires with the diameter of 2mm in a staggered mode, and the size of the steel wire mesh is the same as the pouring size of the water retaining wall 130.

The water retaining wall 130 obtained by the method can be prefabricated off-line in advance, and the replaced worn water retaining wall 130 is only required to be placed in a water retaining wall 130 off-line manufacturing mold, and pouring and repairing are carried out on the worn position by using refractory materials again.

Referring to fig. 1 and 2, in order to facilitate replacement of a new retaining wall 130, a lifting lug 133 is disposed at the top of the retaining wall 130, wherein a connecting end of the lifting lug 133 is embedded in the base, and optionally, the connecting end of the lifting lug 133 may be connected with a steel wire mesh, so as to improve stability.

Optionally, the number of the lifting lugs 133 is one or two, in this embodiment, the number of the lifting lugs 133 is two, and the two lifting lugs 133 are arranged at intervals.

In order to further reduce the abrasion speed of the retaining wall 130, the front surface of the retaining wall 130 is provided with a buffer beam 140 for buffering the impact force of the slag water, the buffer beam 140 protrudes out of the front surface of the retaining wall 130, and the joint of the buffer beam 140 and the front surface of the retaining wall 130 is in smooth transition. It should be noted that. The bumper beam 140 is vertically disposed on the front face of the retention wall 130, and it should be noted that the vertical direction here does not require an absolute overhang, but may be slightly inclined.

The cross section of the bumper beam 140 may be square, trapezoid, hemispherical, etc., in this embodiment, the cross section of the bumper beam 140 is hemispherical, that is, the bumper beam 140 is an arc protrusion protruding outward from the front surface of the water blocking wall 130.

The number of the buffer beams 140 is one or more, wherein a plurality of the buffer beams 140 are arranged at intervals; here, a plurality is, for example, two, three, five or seven, etc. Optionally, the number of the bumper beams 140 is 3-5, the diameter of the bumper beams 140 is proper in the number within the range, the angle between two bumper beams 140 is proper, the diameter of the bumper beam 140 is small due to the fact that the number of the bumper beams 140 is too large, the angle between two bumper beams 140 is small, the buffering effect is poor, and meanwhile the manufacturing difficulty is increased. In the illustrated embodiment, the number of the bumper beams 140 is 3, and the 3 bumper beams 140 are arranged at equal intervals.

At this time, the radius of each arc-shaped convex bumper beam 140 does not exceed the thickness of the bulkhead, specifically, for example, when the bulkhead 130 is a rectangle with a length of 2000mm, a height of 1000mm and a thickness of 300mm, in the 3 arc-shaped convex bumper beams 140 at this time, each arc-shaped convex bumper beam 140 has the same thickness as the bulkhead, which is 300mm, that is, the diameter of the bumper beam 140 is 600mm, the total occupation distance of the 3 arc-shaped convex bumper beams 140 (the occupation distance refers to the value at the connection position of the bumper beam 140 and the bulkhead in the length direction of the bulkhead) is 600mm × 3, which is 1800mm, and the distance between any two adjacent bumper beams 140 is the same.

In some other embodiments shown in the present application, the number of the arc-shaped convex bumper beams 140 is 5, the arc-shaped convex radius of each bumper beam 140 does not exceed the thickness of the retaining wall, the size is easy to control during pouring, the occupied space is more suitable, each bumper beam 140 is smoothly and excessively connected, and after the flushing slag water is directly contacted, the slag water cannot rebound, so that the buffering effect is achieved. Specifically, when the retaining wall 130 is a rectangle with a length of 2000mm, a height of 1000mm and a thickness of 300mm, in the 5 arc-shaped convex bumper beams 140, the radius of each arc-shaped convex bumper beam 140 is 150mm, the diameter of each arc-shaped convex bumper beam 140 is 300mm, and the total occupied distance of 5 bumper beams 140 is 1500 mm; the two adjacent bumper beams 140 have a certain distance therebetween, and each distance is the same, at this time, the arc transition radius of each arc-shaped bumper beam 140 is just 150mm, which is 1/2 of the thickness of the retaining wall, the size is easy to control during pouring, the symmetry is strong, and the appearance is attractive.

Under the above setting conditions, the arc convex-shaped bumper beam 140 can break up the impact of water flow and slow down the impact of highly aggressive water containing slag on the water retaining wall, the raw slag water flow is divided into a plurality of water flows by the plurality of distributed bumper beams 140, the impact erosion capability of each water flow is weakened, in addition, the protruding part of the bumper beam 140 increases the area bearing the impact of water flow and reduces the impact on unit area, and when the water flow impacts the middle bulge of the bumper beam 140, the water flow flows towards two lateral flows, the water flow is separated, the flowing path of the water flow is increased, the impact of the water flow on the water retaining wall is also slowed down, in addition, the kinetic energy is counteracted after the water flows which respectively start to flow down from the convex parts of the two buffer beams 140 meet between the two buffer beams 140, therefore, the kinetic energy of the water flow is reduced, and the impact of the water flow on the water retaining wall is reduced, so that the abrasion of the water retaining wall is greatly reduced due to the arrangement of the arc-shaped convex buffer beam 140.

The number of the residual thickness detection scales 150 is plural, and the plural residual thickness detection scales 150 are arranged at the middle position of the water blocking wall 130 at intervals, and the plural number here is, for example, two, three, five, and the like.

As in the waterwall 130 shown in fig. 1, the number of the residual thickness detection scales 150 is five, wherein four detection scales are arranged in a square shape and located at four corners of the square shape, the remaining detection scale is located at the center of the square shape, when the waterwall 130 is a rectangle with a length of 2000mm, a height of 1000mm and a thickness of 300mm, the distance between each residual thickness detection scale 150 is 500mm, and meanwhile, the residual thickness detection scale 150 is made of wear-resistant material, specifically, for example, the residual thickness detection scale 150 is made of stainless steel, wherein the residual thickness detection scale 150 is 300mm long, the diameter is 10mm, a mark is made at a distance of 10mm, and when the residual thickness of the waterwall 130 is less than 100mm, the waterwall 130 is replaced by the water.

It should be noted that the detection scale may be disposed at a position where the bumper beam 140 is located, or may be disposed at a portion of the water blocking wall 130 where the bumper beam 140 is not located, and may be specifically disposed according to actual requirements, which is not limited herein.

In order to further improve the stability of the water retaining wall 130 installed at the connection position of the buffer pool 110 and the auger pool 100, optionally, the blast furnace slag treatment system 10 further includes a fixing frame 160, the fixing frame 160 is fixedly installed at the connection position of the buffer pool 110 and the auger pool 100, the water retaining wall 130 is located at one side of the fixing frame 160 close to the buffer pool 110 and detachably connected with the fixing frame 160, the fixing frame 160 has a second flow channel, and the buffer pool 110, the first flow channel 131, the second flow channel and the auger pool 100 are sequentially communicated.

It should be noted that the mounting frame may be a steel plate or a frame body.

In order to avoid some problems caused by untimely replacement of the retention wall 130, and further to thoroughly solve the existing problems, in this embodiment, the fixing frame 160 is a steel plate, specifically, a steel plate made of stainless steel, at this time, the size of the second flow channel is matched with that of the first flow channel 131, and the second flow channel is disposed at the bottom of the fixing frame 160, that is, when the retention wall 130 is a rectangle with a length of 2000mm, a height of 1000mm, and a thickness of 300mm, the second flow channel and the first flow channel 131 are both 1000mm, 400mm, and rectangular holes.

Referring to fig. 2 and fig. 3, specifically, the fixing frame 160 is enclosed to form an accommodating cavity, wherein one side of the accommodating cavity facing the buffer pool 110 has a first opening 161, a top of the accommodating cavity has a second opening for the water-blocking wall 130 to enter or leave the accommodating cavity, the water-blocking wall 130 is detachably embedded in the accommodating cavity, and a front surface of the water-blocking wall 130 is exposed to the buffer pool 110 through the first opening 161.

Optionally, the area of the first opening 161 is slightly smaller than the area of the front surface of the water blocking wall 130, so as to ensure the stability of the water blocking wall 130 in the accommodating cavity.

In some other embodiments provided by the present application, a mounting seat (not shown) is fixedly disposed at a connection portion of the bottom of the accommodating cavity corresponding to the buffer pool 110 and the auger pool 100, wherein a groove is disposed at the bottom of the water blocking wall 130, the water blocking wall 130 is hung from the second opening and disposed on the mounting seat in a clamping manner after being hung in the accommodating cavity, and the water blocking wall 130 is embedded in the accommodating cavity and attached to the fixing member.

Through the arrangement, the stability of the water retaining wall 130 arranged at the joint of the buffer pool 110 and the auger pool 100 is ensured.

By adopting the scheme adopted by the embodiment of the application, the water retaining wall 130 only needs 0.5-1 hour for replacement each time, the replacement operation can be completed by utilizing the tapping clearance time, the water slag passing in front of the blast furnace is not influenced, the economy and the environmental protection are realized, and the potential safety hazard is eliminated. The process of additionally arranging the water retaining wall 130 between the buffer pool 110 and the auger pool 100 can improve the slag carrying efficiency of the auger 101 and avoid the occurrence of the jamming accident of the auger 101 caused by slag piling in the auger pool 100.

In conclusion, the blast furnace granulated slag processing system provided by the application not only can effectively block high-speed high-pressure slag water from directly impacting the auger, prevent the auger from being worn and torn, prolong the service life of the auger, but also can improve the slag carrying efficiency of the auger, and avoid the occurrence of auger jamming accidents caused by slag piling in the auger pool.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a blast furnace grain slag processing system, includes auger pond and sediment water mixing tank, the feed end in auger pond outwards extends and forms the buffer pool, sediment water mixing tank is located the top of buffer pool and carry the sediment water extremely in the buffer pool, its characterized in that, blast furnace grain slag processing system still includes:

the wearable water retaining wall is detachably arranged at the joint of the buffer pool and the auger pool to partially separate the buffer pool and the auger pool, the front surface of the water retaining wall faces the buffer pool, and the bottom of the water retaining wall is provided with a first flow channel communicated with the buffer pool and the auger pool; and

and the residual thickness detection scale is arranged on the front surface of the water retaining wall and is used for detecting and obtaining the real-time thickness of the water retaining wall.

2. The blast furnace slag treatment system according to claim 1, wherein the residual thickness detection scale is provided in a plurality of numbers, and the plurality of residual thickness detection scales are arranged at intervals at a middle position of the water blocking wall.

3. The blast furnace slag treatment system according to claim 1, wherein the front surface of the retaining wall is provided with a bumper beam for buffering the impact force of slag water, and the bumper beam protrudes from the front surface of the retaining wall.

4. The blast furnace slag treatment system according to claim 3, wherein the bumper beam is vertically arranged on a front surface of the water-retaining wall.

5. The blast furnace slag treatment system according to claim 3, wherein the bumper beam is a circular arc protrusion protruding outward from the front surface of the retaining wall.

6. The blast furnace granulated slag processing system according to claim 3, wherein the number of the buffer beams is one or more, and a plurality of the buffer beams are arranged at intervals;

optionally, the number of the bumper beams is 3-5.

7. The blast furnace slag treatment system according to claim 3, wherein a junction of the bumper beam and the front face of the waterwall transitions smoothly.

8. The blast furnace granulated slag treatment system according to any one of claims 1 to 7, wherein the retaining wall comprises a base body made of a refractory material by casting and a plurality of layers of steel wire meshes arranged in the base body at intervals in a thickness direction of the retaining wall;

optionally, the substrate is cast from corundum.

9. The blast furnace granulated slag processing system according to any one of claims 1 to 7, further comprising a fixing frame, wherein the fixing frame is fixedly arranged at the joint of the buffer pool and the auger pool, the retaining wall is positioned at one side of the fixing frame close to the buffer pool and is detachably connected with the fixing frame, the fixing frame is provided with a second flow channel, and the buffer pool, the first flow channel, the second flow channel and the auger pool are sequentially communicated;

optionally, the fixing frame is enclosed to form an accommodating cavity, an opening is formed in one side, facing the buffer pool, of the accommodating cavity, the water retaining wall is detachably embedded in the accommodating cavity, and the front face of the water retaining wall is exposed to the buffer pool through the opening.

10. The blast furnace granulated slag processing system according to any one of claims 1 to 7, wherein a lifting lug is provided on the top of the retaining wall;

optionally, the blast furnace slag treatment system further comprises an auger, wherein the input end of the auger is positioned in the auger pool.